Last name Ruchen (Ruchen 
, 汝辰 ) , all over the world, is a rare family name. The surname Ruchen is habitual in Taiwan, where it is a rare surname, Chile, where it is an extremely rare surname, and China. Not in comparison with a country's population, it is the most numerous in Taiwan, China, and India. More frequently, Ruchen is the forename as well as the last name.